Outwardly opening window construction



p 7, 1940. H.VO. CARROLL 2,215,170

OUTWARDLY OPENING WINDOW CONSTRUCTION Filed March 22, 1938 ATTORNEY);

Patented Sept. 17, I940 UNITED TA ES PATENT- OFFICE OUTWARDLY OPENING CONSTRUCTION Hubert o. oamnramesviue, Ohio Application. MarchZZ, 1938, Serial No. 197,396

20lalms. Outwardly opening windows, while having certain advantages under some conditions, have'in general been under the great disadvantages of entailing awkward operating means projecting undesirably on the inside of the room, and involving also interference with the placement of window screens. In accordance with the present invention however, it now becomes possible to in detail certain illustrative embodiments of the invention, these being indicative however, of but a few of the various ways in which the principle of the invention may be employed.

In said annexed drawing- Fig. l is a'perspective view of an embodiment of the invention, looking from the inside; Fig. 2

is a plan-section taken on a plane substantially indicated by line IIII, Fig. 1; Fig. 3 is a similar view showing the parts in open position; Fig. 4 is an enlarged detail, chiefly in section; as are also Figs. 5 and 6.

In an opening having a frame 2, as desired, a window sash 3 is mounted to swing outwardly, having upper and lower hinges pivotally attaching one edge of the sash to the frame, and preferably in such relation as to offset or move the sash toward the center when it is open, and provide a bracing means against outside wind pressure when the sash is open, a suflicient offsetting or lateral movement being obtained, as indicated in Fig. 3, to allow convenient reaching out for cleaning the external surface or the window when desired. For such mounting, there may be a bracket member 5, Figs. 3 and 5, fastened to the frame and having pivoted to its outer portion an oilsetting member 6 which is pivoted in turn to abracket 1 secured to the sash 3. A spring 3 which may have a toggling tensioning action, is connected at Ill, Fig. 5, to the frame-bracket 5, and at I l to the sash-bracket, and pulls the sash tight even if the hinges be worn and loose. Attached to the inside of the sash on the hinge edge is a lug or lever arm l4 (which greatly reduces the power required and the travel used in opening and closing), and to which is pivotally connected increase of operating leverage.

a link l5 extending to an oscillable arm N- in toggle relation. Secured to the axis or stub-shaft which mounts the oscillable arm is a gear I8, Fig. 4. A latch to cooperate is preferably provided, such as latch 20, and while this may be 5 arranged to take into recesses in the gear l6, more usually it is desirable to provide a disc 20 with the gear or in association with the stub shaft, and having latching recesses 2|, 22, for holding the mechanism against any accidental 10 displacement, when set in desired position. The latch '20 maybe normally urged into latching position by spring 23, and convenient releasing means may be applied, for instance a bell-crank lever pivoted at 26 to the carrier plate 21, and 15 having actuating means, such as a cam 28 pivoted at 29, with a finger-operating means 30. To operate the gear I8 and swing the arm l6 for movement of the sash, a gear 33 is arranged in relation, and desirably an idler pinion 34 is interg0 posed. Gearing makes possible, furthermore, an A cover plate 35 conceals the gearing within, being set'flush in the window sill 36. Normally, there is no projection above the cover plate 35 at the operating 5 gear 33, but a key-element 31 may be inserted to turn the gear 33 for the operation of the oscillable arm I 6 and the window, when desired, such key-element being of any convenient form, for instance presenting a squared end to fit into a recess 38 in the gear. Thus, ordinarily the inner portion of the window sill 36 is as level and free from projections as any customary Simple window sill construction. In tightening action also on the sash, at the opposite edge is a pull-arm 40, Figs-l, and 6, having a lateral projection 4| to engage over a lug 42 which is secured to'the sash. The arm 40 has a compound motion, reciprocating forward and backward and also up and down, as for instance by a slot and pin 40 mounting 44, 45, the inner end of the arm being pivotally connected at 46 to an eccentric 41 which can turn on a pivot 48 in the plate 49 secured to the frame. A cover 50,- Fig. 1 (shown I partly broken away at its outer end), conceals the moving parts and is set flush with the frame.

To swing the eccentric 41 a thumb-hold 5| is provided, and a spring 52' extending from the pivot point 46 to a point of attachment 53 on the plate 49 provides a toggling action and holds the arm 40 in whichever position it is set.

Thus tightened at both edges against its frame, the sash is unobtrusively held in weather-sealing relation, but at any time desired may be swung open by releasing the pull-arm 40 by pressing 55 and the latch control 30 released by finger pres sure, turning of the key-element in the direction of the arrow, Fig. 3, swings the sash shut to the position shown in Fig. 2, and then by pressing the member 5i into its upper position, the pull-arm l0 draws its projection 4| down tightly in wedging action against the lug 42, and the sash is tightened at both sides. All of these movements are without any interference with the window screen or storm sash S, which may be set in position as indicated at s, Fig. 1, with its lower edge between the key 31 and the arm l6. And, while the window may be manipulated in opening and closing movements as desired irrespective of the screen in position, the latter may of course also be removed and be replaced as desired independently of the window.

Other modes of applying the principle of the invention may be employed, change being made as regards the details described, provided the features stated in any of the following claims, or the equivalent of such, be employed.

I therefore particularlyfi point out and distinctly claim as my invention;

1. In construction of the character described,

a casement window comprising a frame and an outwardly opening sash therein; means for tightening the sash against-its frame, including means for pivotally attaching one edge of the sash to the frame, toggling spring means secured to said attaching means between'the sash and the frame for applying tension, 9. leverage arm attached to the sash; and operating means connected to the leverage arm and frame to open and close the window.

2. In construction of the character described, a casement window comprising a frame and an outwardly opening sash therein; means for tightening the sash against its frame, including means for pivotally attaching one edge of the sash to the frame, toggling spring means secured to said attaching means between the sash and the frame for applying tension, a leverage arm attached to the sash, operating means connected to the leverage arm and frame to open and close the window,

said operating means comprising an oscillable op- 

